105506501 has 2 divisors, whose sum is σ = 105506502. Its totient is φ = 105506500.

The previous prime is 105506491. The next prime is 105506507. The reversal of 105506501 is 105605501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84621601 + 20884900 = 9199^2 + 4570^2 .

It is a cyclic number.

It is not a de Polignac number, because 105506501 - 2¹⁸ = 105244357 is a prime.

It is a super-2 number, since 2×105506501² = 22263243506526002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105506507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52753250 + 52753251.

It is an arithmetic number, because the mean of its divisors is an integer number (52753251).

Almost surely, 2^105506501 is an apocalyptic number.

It is an amenable number.

105506501 is a deficient number, since it is larger than the sum of its proper divisors (1).

105506501 is an equidigital number, since it uses as much as digits as its factorization.

105506501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 105506501 is about 10271.6357509405. The cubic root of 105506501 is about 472.5267582804.

The spelling of 105506501 in words is "one hundred five million, five hundred six thousand, five hundred one".